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Finding the Fourth Proportional to 629,760.80, 944,554.80 and 208,992.80

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Solution

The fourth proportional to 629,760.80, 944,554.80 and 208,992.80 is: 313,460.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    629,760.80 : 944,554.80 = 208,992.80 : x
  2. Step 2: Convert to fraction form
    629,760.80/944,554.80 = 208,992.80/x
  3. Step 3: Cross multiply
    629,760.80x = 944,554.80 × 208,992.80
  4. Step 4: Simplify right side
    629,760.80x = 197,405,152,405.44
  5. Step 5: Solve for x
    x = 197,405,152,405.44/629,760.80
  6. Step 6: Final answer
    x = 313,460.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.